LinuxGSM/functions/fn_autoip

#!/bin/bash
# LGSM fn_autoip function
# Author: Daniel Gibbs
# Website: http://danielgibbs.co.uk
# Version: 011214

# Identifies the server interface IP
# If multiple interfaces this will need to be set manually

getip=$(ip -o -4 addr|awk '{print $4 }'|grep -oe '\([0-9]\{1,3\}\.\?\)\{4\}'|grep -v 127.0.0)
getipwc=$(ip -o -4 addr|awk '{print $4 }'|grep -oe '\([0-9]\{1,3\}\.\?\)\{4\}'|grep -vc 127.0.0)
if [ "${ip}" == "0.0.0.0" ]||[ "${ip}" == "" ]; then
	if [ "${getipwc}" -ge "2" ]; then
		fn_printwarn "Multiple active network interfaces.\n\n"
		echo -en "Manually specify the IP you want to use within the ${selfname} script.\n"
		echo -en "Set ip=\"0.0.0.0\" to one of the following:\n"
		echo -en "${getip}\n"
		exit
	else
		ip=${getip}
	fi
fi